[单选题]
A piece of plastic has a net charge of +2.00 mC. How macs zv.nr6w/8tl xqv on )n8)4vny more protqe8c(c9f40s9w)ih h ocz xf6mons than electrfic(w h49e0fhc ) qmxzs8c9 6oons does this piece of plastic have?
A. $1.25 \times 10^{13}$
B. $1.25 \times 10^{19}$
C. $2.50 \times 10^{13}$
D. $2.50 \times 10^{19}$
